🔍 Key Concepts

• Inland Navigation Rules – definition of a special flashing light (check the exact wording) • How a special flashing light differs from a masthead light (color, location, arc, flashing vs steady) • Towing terminology: the meaning of a composite unit and when special lights are or are not required

💭 Think About

• First, recall the formal definition of a special flashing light and list its specific features (color, arc, flashing rate, where it is carried). Which choice matches those details exactly? • Compare that definition to the requirements for a masthead light. Are they really “the same character and construction,” or are there clear differences? • Think about whether a vessel in a composite unit is treated as a separate tow requiring special tow lights, or as a single power‑driven vessel with normal navigation lights only.

✅ Before You Answer

• Verify the arc of visibility in degrees for a special flashing light in the Inland Rules. • Confirm whether a special flashing light must be identical in character and construction to a masthead light, or if only some aspects (like arc) are similar. • Check whether a composite unit is required to show special flashing lights, or if it instead shows the normal lights of a single power‑driven vessel.